Molecular phylogenetic relationships inAveneae (Poaceae) species and other grasses as inferred from ITS1 and ITS2 rDNA sequences

1998 ◽  
Vol 213 (3-4) ◽  
pp. 233-250 ◽  
Author(s):  
B. Grebenstein ◽  
M. R�ser ◽  
W. Sauer ◽  
V. Hemleben
Keyword(s):  
Phylogenetic Relationships ◽  
Its2 Rdna ◽  
Rdna Sequences ◽  
Molecular Phylogenetic ◽  
Its1 And Its2 Rdna ◽  
Its1 And Its2

Phylogenetic Analysis of the Lichen Family Umbilicariaceae based on nuclear ITS1 and ITS2 rDNA Sequences

1999 ◽  
Vol 31 (05) ◽  
pp. 477 ◽  
Author(s):  
Natalia V. Ivanova ◽  
Paula T. Depriest ◽  
Vera K. Bobrova ◽  
Alexey V. Troitsky
Keyword(s):  
Phylogenetic Analysis ◽  
Its2 Rdna ◽  
Rdna Sequences ◽  
Its1 And Its2 Rdna ◽  
Its1 And Its2

Phylogenetic Analysis of the Lichen Family Umbilicariaceae based on nuclear ITS1 and ITS2 rDNA Sequences

1999 ◽  
Vol 31 (5) ◽  
pp. 477-489 ◽  
Author(s):  
Natalia V. Ivanova ◽  
Paula T. Depriest ◽  
Vera K. Bobrova ◽  
Alexey V. Troitsky
Keyword(s):  
Phylogenetic Analyses ◽  
Current Treatment ◽  
Taxon Sampling ◽  
Its2 Rdna ◽  
Separate Genus ◽  
Rdna Sequences ◽  
Representative Species ◽  
Phylogenetic Hypotheses ◽  
Its1 And Its2 Rdna ◽  
Its1 And Its2

AbstractThe lichen family Umbilicariaceae is accepted by most lichenologists as consisting of two genera, Lasallia and Umbilicaria. The monophyly of these two genera was examined by phylogenetic analyses of nucleotide sequences of ITS 1 and ITS2 rDNA. Sequences of these regions from three Lasallia and 17 Umbilicaria species were aligned to those of seven representatives of the outgroup taxa including Eurotiales, Onygenales and Caliciales (Mycocaliciaceae) and subjected to maximum parsimony, maximum likelihood and neighbour-joining analyses. The resulting phylogenetic hypotheses supported the monophyly of the representative species of Lasallia. However, the species of Umbilicaria did not form a monophyletic sistergroup to Lasallia due to the basal placement of other Umbilicaria species in some analyses. Based on these analyses, if Lasallia is recognized as a separate genus then Umbilicaria appears to be paraphyletic. Although further taxon sampling is required to resolve the monophyly of Umbilicaria, for the present we recommend retaining the current treatment of Lasallia as separate from Umbilicaria.

First records of Knufia marmoricola from limestone outcrops in the Wyżyna Krakowsko-Częstochowska Upland, Poland

Phytotaxa ◽  
2018 ◽  
Vol 357 (2) ◽  
pp. 94 ◽  
Author(s):  
MAGDALENA OWCZAREK-KOŚCIELNIAK ◽  
KATJA STERFLINGER
Keyword(s):  
Mediterranean Basin ◽  
Phylogenetic Analyses ◽  
High Variability ◽  
Potato Dextrose Agar ◽  
Malt Extract ◽  
Its2 Rdna ◽  
Rdna Sequences ◽  
Microcolonial Fungi ◽  
Molecular Phylogenetic ◽  
The Mediterranean Basin

Studies on microcolonial fungi (MCF) inhabiting limestone formations in the Wyżyna Krakowsko-Częstochowska Upland (Poland) resulted in isolation of Knufia marmoricola. This is the first report of this species in Poland, which was previously known from the Mediterranean basin. Morphological analyses have shown a high variability dependent on used mycological media. Malt extract agar (MEA) proved to be the most suitable medium for morphological observations. Cultivation on potato dextrose agar (PDA) and dichloran rose-Bengal with chloramphenicol medium (DRBC) resulted in growth of mycelium lacking in repetitive diagnostical features. Growth on a synthetic nutrient-poor agar (SNA) medium resulted in flattening of the colonies, decreased melanization and reduction of the colony density. Molecular phylogenetic analyses, based on ITS1­-5.8S-­ITS2 rDNA sequences, confirmed assignment of Polish isolates to Knufia marmoricola. Nomenclatural clarification of Knufia petricola is presented.

scholarly journals Usnea nipparensis and U. sinensis form a ‘species pair ’ presuming morphological, chemical and molecular phylogenetic data

2020 ◽  
pp. 265-271
Author(s):  
Yoshihito Ohmura
Keyword(s):  
Phylogenetic Relationships ◽  
Phylogenetic Trees ◽  
Its Rdna ◽  
Phylogenetic Position ◽  
Species Pair ◽  
Rdna Sequences ◽  
Phylogenetic Data ◽  
Close Relationship ◽  
Molecular Phylogenetic ◽  
Molecular Phylogenetic Data

Phylogenetic relationships between Usnea nipparensis and U. sinensis, caperatic acid containing Usnea species, were examined based on ITS rDNA, and the phylogenetic position of U. nipparensis was inferred based on multi-locus gene analysis using ITS rDNA, nuLSU, and MCM7. Although U. nipparensis and U. sinensis have a sorediate and an esorediate shrubby thallus, respectively, and in general look quite different, other detailed morphological and chemical features are similar. Analysis of the ITS rDNA sequences suggests their close relationship, but also confirms the independence of both species, and that they most likely form a ‘species pair’ based on morphological, chemical and molecular phylogenetic data. Phylogenetic trees based on both multi-locus gene and ITS rDNA alone strongly support that U. nipparensis and U. angulata belong to the same clade.

Molecular Phylogenetic Relationships Among Angiosperms: An Overview Based on rbcL and 18S rDNA Sequences

1997 ◽  
pp. 157-178 ◽  
Author(s):  
Douglas E. Soltis ◽  
Carola Hibsch-Jetter ◽  
Pamela S. Soltis ◽  
Mark W. Chase ◽  
James S. Farris
Keyword(s):  
Phylogenetic Relationships ◽  
18S Rdna ◽  
Rdna Sequences ◽  
Molecular Phylogenetic ◽  
18S Rdna Sequences

scholarly journals Comparison of the ITS1 and ITS2 rDNA in Eimeria callospermophili (Apicomplexa: Eimeriidae) from Sciurid Rodents

2011 ◽  
Vol 97 (2) ◽  
pp. 305-310 ◽  
Author(s):  
Dagmara Motriuk-Smith ◽  
R. Scott Seville ◽  
Leah Quealy ◽  
Clinton E. Oliver
Keyword(s):  
Its2 Rdna ◽  
Its1 And Its2 Rdna ◽  
Its1 And Its2

Comparison of ITS1 and ITS2 rDNA in 454 sequencing of hyperdiverse fungal communities

2013 ◽  
Vol 6 (1) ◽  
pp. 102-109 ◽  
Author(s):  
Anna L. Bazzicalupo ◽  
Miklós Bálint ◽  
Imke Schmitt
Keyword(s):  
454 Sequencing ◽  
Fungal Communities ◽  
Its2 Rdna ◽  
Its1 And Its2 Rdna ◽  
Its1 And Its2

Morphological and molecular characterisation of Longidorus pinus sp. n. (Nematoda: Longidoridae) from China and a key to known species of Longidorus in China

Nematology ◽  
2018 ◽  
Vol 20 (7) ◽  
pp. 617-639 ◽  
Author(s):  
Yumei Xu ◽  
Weimin Ye ◽  
Jianming Wang ◽  
Zengqi Zhao
Keyword(s):  
Phylogenetic Analyses ◽  
Geographic Origin ◽  
Morphological Characters ◽  
Rdna Sequences ◽  
Molecular Phylogenetic ◽  
Stage Juvenile ◽  
Juvenile Stages ◽  
Amphidial Fovea ◽  
Guide Ring ◽  
Its1 And Its2 Rdna

Summary Longidorus pinus sp. n. from China is characterised by females 3.3-4.9 mm long; lip region 8-12 μm diam., distinctly offset by a constriction; amphidial fovea pocket-shaped without basal lobes; a short odontostyle (67-81 μm); anteriorly located guide ring (30-38 μm); and short and conoid tail (31-40 μm long, c = 84-138, c′ = 1.2-1.9), with one or two pairs of caudal pores on each side. Males were not found. Three developmental juvenile stages were identified, the first-stage juvenile with conoid tail (c′ = 2.4-2.9). The polytomous key codes for the new species are: A2(3), B1, C23, D4, E1, F2, G23, H23, I1, J2, K6. Molecular phylogenetic analyses based on SSU, D2-D3 of LSU, ITS1 and ITS2 rDNA sequences indicate that L. pinus sp. n. is closely related to L. hangzhouensis, L. asiaticus, and L. camelliae, all of which apparently share a common Asiatic geographic origin. In addition, a key for identification of Longidorus found in China, based on morphological characters of both female and first-stage juvenile, is provided.

Sign in / Sign up

Export Citation Format

Share Document